A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 5895-01-448-6810
NSN 5935-00-633-8302
NSN 5990-00-288-1820
NSN 7035-01-519-3253
NSN 5920-00-806-5613
NSN 2925-01-265-2853
NSN 5990-01-576-4383
NSN 5985-00-727-0482
NSN 5990-01-423-8189
NSN 5998-01-294-6291
NSN 5905-01-225-6795
NSN 5895-01-218-5745